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13286400 = 210352173
BaseRepresentation
bin110010101011…
…110000000000
3221000000111220
4302223300000
511400131100
61152435040
7220634601
oct62536000
927000456
1013286400
1175552a6
124548a80
1329a269a
141a9bda8
151276aa0
hexcabc00

13286400 has 132 divisors (see below), whose sum is σ = 44166072. Its totient is φ = 3522560.

The previous prime is 13286393. The next prime is 13286407. The reversal of 13286400 is 468231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13286393) and next prime (13286407).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13286407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76714 + ... + 76886.

Almost surely, 213286400 is an apocalyptic number.

13286400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13286400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22083036).

13286400 is an abundant number, since it is smaller than the sum of its proper divisors (30879672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13286400 is a wasteful number, since it uses less digits than its factorization.

13286400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 13286400 is about 3645.0514399662. The cubic root of 13286400 is about 236.8476651066.

The spelling of 13286400 in words is "thirteen million, two hundred eighty-six thousand, four hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 64 75 80 96 100 120 128 150 160 173 192 200 240 256 300 320 346 384 400 480 512 519 600 640 692 768 800 865 960 1024 1038 1200 1280 1384 1536 1600 1730 1920 2076 2400 2560 2595 2768 3072 3200 3460 3840 4152 4325 4800 5120 5190 5536 6400 6920 7680 8304 8650 9600 10380 11072 12800 12975 13840 15360 16608 17300 19200 20760 22144 25600 25950 27680 33216 34600 38400 41520 44288 51900 55360 66432 69200 76800 83040 88576 103800 110720 132864 138400 166080 177152 207600 221440 265728 276800 332160 415200 442880 531456 553600 664320 830400 885760 1107200 1328640 1660800 2214400 2657280 3321600 4428800 6643200 13286400